Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0LT callsign genealogy
Currently held by Tiemann, William A
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by N0LT's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N0LT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0LT, oldest first.
- KELLER, JOHN IA2006-09-08 → cancelled 2018-12-05
- Tiemann, William A CO2018-12-27 active